/// <summary>
/// Gets a list of the tuples <path, chunk index, chunk size> for each input (virtual) file chunk.
/// </summary>
/// <param name="filePath">The file path.</param>
/// <param name="fileIndices">The file indices.</param>
public List <Tuple <string, int, int> > GetChunkIndices(string filePath, int[] fileIndices)
{
logger.DebugFormat("Going to get chunks indices for file indices {0} for file {1}.", string.Join(",",
System.Array.ConvertAll <int, string>(fileIndices, x => x.ToString())), filePath);
var sessionProvider = new NHSessionProvider(_sessionFactory);
using (sessionProvider) {
var helper = new ChunkDbHelper(sessionProvider.CurrentSession);
var txnProvider = new NHTransactionProvider(sessionProvider);
ManagedFile file;
using (var transaction = txnProvider.BeginTransaction()) {
file = helper.GetManagedFile(filePath);
}
var chunkMap = file.ChunkMap;
var eofChunk = chunkMap.EofChunk;
var ret = new List <Tuple <string, int, int> >();
foreach (int fileIndex in fileIndices)
{
var entry = chunkMap.GetByFileIndex(fileIndex);
logger.DebugFormat("File index {0} maps to chunk index {1}",
fileIndex, entry.ChunkIndex);
var fileTuple = Tuple.Create <string, int, int>(
filePath,
entry.ChunkIndex,
entry.ChunkSize);
ret.Add(fileTuple);
}
return(ret);
}
}
/// <summary>
/// Gets a list of the tuples <path, chunk index, chunk size> for each input chunk.
/// </summary>
/// <param name="filePath">The file path.</param>
/// <param name="chunkIndices">The chunk indices.</param>
public List <Tuple <string, int, int> > GetChunkLocations(string filePath, int[] chunkIndices)
{
logger.DebugFormat("Going to get deduplicated locations of data chunks {0} for file {1}.", string.Join(",",
System.Array.ConvertAll <int, string>(chunkIndices, x => x.ToString())), filePath);
var sessionProvider = new NHSessionProvider(_sessionFactory);
using (sessionProvider) {
var helper = new ChunkDbHelper(sessionProvider.CurrentSession);
var txnProvider = new NHTransactionProvider(sessionProvider);
ManagedFile file;
using (var transaction = txnProvider.BeginTransaction()) {
file = helper.GetManagedFile(filePath);
}
var chunkMap = file.ChunkMap;
var eofChunk = chunkMap.EofChunk;
var ret = new List <Tuple <string, int, int> >();
using (var transaction = txnProvider.BeginTransaction()) {
var dao = new Dao <DataChunk>(sessionProvider.CurrentSession);
foreach (int chunkIndex in chunkIndices)
{
byte[] chunkHash = chunkMap.HashAt(chunkIndex);
int chunkSize = chunkIndex == eofChunk.ChunkIndex ?
eofChunk.ChunkSize : DataChunk.ChunkSize;
var chunkInfo = dao.UniqueResultByExample(new
DataChunk {
Hash = chunkHash
});
if (chunkInfo == null)
{
throw new ChunkNotInDbException(string.Format(
"Chunk {0} in the file hasn't been added yet.",
chunkIndex))
{
File = filePath,
ChunkIndex = chunkIndex
};
}
logger.DebugFormat("Chunk index {0} maps to chunk {1} in file {2}.",
chunkIndex, chunkInfo.ChunkIndex, chunkInfo.File.Path);
var fileTuple = Tuple.Create <string, int, int>(
chunkInfo.File.Path,
chunkInfo.ChunkIndex,
chunkSize);
ret.Add(fileTuple);
}
}
return(ret);
}
}
public NHTransactionProvider(NHSessionProvider sessionProvider)
{
_sessionProvider = sessionProvider;
}
public NHTransactionProvider(NHSessionProvider sessionProvider)
{
_sessionProvider = sessionProvider;
}